ICD-10 code F90: ADHD Diagnosis codes (2026)
Introduction to ICD-10 Codes for ADHD Attention-Deficit/Hyperactivity Disorder (ADHD) is one of the most commonly diagnosed neurodevelopmental conditions in both paediatric and adult mental health settings. Accurate ICD-10-CM coding for ADHD is essential for clinical documentation, treatment planning, and insurance reimbursement. The ICD-10 code for ADHD falls under the F90 series, which distinguishes between Predominantly […]
ICD-10 code M19.90: Degenerative Joint Disease Documentation
Understanding Degenerative Joint Disease ICD-10 Coding Degenerative joint disease (DJD), also known as osteoarthritis, represents one of the most commonly documented musculoskeletal conditions in clinical practice. Accurate ICD-10-CM coding for DJD requires understanding the distinction between unspecified codes and joint-specific classifications, laterality requirements, and the difference between primary and secondary osteoarthritis presentations. The ICD-10-CM system […]
ICD-10-CM code R04.0: Epistaxis (Nosebleed)
Understanding ICD-10-CM Epistaxis Coding Epistaxis, commonly known as nosebleed, represents one of the most frequent otolaryngological presentations in clinical practice. The World Health Organization’s ICD-10 classification system assigns a single diagnostic code to this condition: R04.0. This code falls within the broader category of symptoms and signs involving the circulatory and respiratory systems, specifically under […]
ICD-10 code F84.0: Autistic Disorder
ICD-10 Code for Autism: Clinical Overview The ICD-10 code for autism spectrum disorder is F84.0 (Autistic Disorder), a billable diagnostic code used by clinicians, insurers, and researchers to classify autism diagnoses in medical records and billing systems. This code sits within Chapter 5 (Mental, Behavioral and Neurodevelopmental Disorders, F01-F99) under the subcategory of Pervasive and […]
ICD-10 code for Anxiety and Depression: Complete Guide
Introduction Coding comorbid anxiety and depression presentations challenges mental health practitioners because the US ICD-10-CM system does not recognise F41.2 (Mixed anxiety and depressive disorder), which exists in the international ICD-10 classification. This creates a gap for clinicians documenting patients who present with clinically significant symptoms of both conditions. The absence of F41.2 in ICD-10-CM […]
ICD-10 code R47.01: Aphasia
Understanding ICD-10 Codes for Aphasia Aphasia diagnosis codes determine more than billing accuracy. They establish medical necessity for speech therapy services, influence prior authorization decisions, and affect reimbursement rates across commercial and Medicare payers. Speech-language pathologists face a critical choice: R47.01 for general aphasia versus etiology-specific codes in the I69 series for cerebrovascular-related language impairment. […]
ICD-10 codes F30-F39: Mood [Affective] Disorders (2026)
Introduction to ICD-10 F30-F39 Mood Disorders ICD-10-CM codes F30-F39 represent the classification system for mood [affective] disorders maintained by the Centers for Medicare and Medicaid Services (CMS) and the National Center for Health Statistics (NCHS). These codes cover conditions where disturbance in mood is the predominant clinical feature. The series includes manic episodes, bipolar disorders, […]
ICD-10-CM code I24.9: Acute Ischemic Heart Disease, Unspecified
Introduction to ICD-10-CM Acute Coronary Syndrome Coding Acute coronary syndrome encompasses a spectrum of ischemic cardiac conditions requiring precise diagnostic coding. The ICD-10-CM code I24.9 (Acute Ischemic Heart Disease, Unspecified) serves as the primary classification when acute coronary syndrome is documented but myocardial infarction cannot be specified. This distinction matters because clinical presentation, troponin elevation, […]
ICD-10-CM Seizure Disorder codes: G40 code Family Guide
ICD-10-CM seizure disorder codes follow a strict hierarchical structure within the G40 code family. Accurate coding depends on three clinical dimensions: seizure type (focal, generalised, or unspecified), treatment response (intractable or not intractable), and status epilepticus presence. The Centers for Medicare & Medicaid Services (CMS) maintains these codes as part of the broader ICD-10-CM classification […]
Polysubstance Abuse ICD-10 code: F19.10 and F19.20 Guide
Polysubstance abuse ICD-10 coding presents unique challenges for behavioural health clinics. The distinction between F19.10 (Other psychoactive substance abuse, uncomplicated) and F19.20 (Other psychoactive substance dependence, uncomplicated) hinges on clinical criteria that mirror DSM-5-TR diagnostic thresholds. Clinicians must document indiscriminate drug use patterns across at least three substance classes to justify these codes over single-substance […]